6373-74-6
Acid Orange 3
CAS: 6373-74-6
Molecular Formula: C18H13N4NaO7S
6373-74-6 - Names and Identifiers
| Name | Acid Orange 3 |
| Synonyms | CI 10385 C.I. 10385 Acid Orange 3 FASTYELLOWLIGHT C.I. Acid Orange 3 acid fast yellow ag acid fast yellow e5r Acid orange 3 (C.I. 10385) acid leather light brown g ACID ORANGE 3, TECHNICAL GRADE 5-[(2,4-dinitrophenyl)amino]-2-(phenylamino)benzenesulfonate sodium 5-[(2,4-dinitrophenyl)amino]-2-(phenylamino)benzenesulfonate 2-anilino-5-(2,4-dinitroanilino)-benzenesulfonic aci monosodium salt Benzenesulfonic acid, 5-(2,4-dinitrophenyl)amino-2-(phenylamino)-, monosodium salt |
| CAS | 6373-74-6 |
| EINECS | 228-921-5 |
| InChI | InChI=1/C18H14N4O7S.Na/c23-21(24)14-7-9-15(17(11-14)22(25)26)20-13-6-8-16(18(10-13)30(27,28)29)19-12-4-2-1-3-5-12;/h1-11,19-20H,(H,27,28,29);/q;+1/p-1 |
6373-74-6 - Physico-chemical Properties
| Molecular Formula | C18H13N4NaO7S |
| Molar Mass | 452.37319 |
| Density | 1.6[at 20℃] |
| Melting Point | >190oC |
| Water Solubility | 2.86g/L at 20℃ |
| Solubility | DMSO (Slightly, Heated, Sonicated), Methanol (Slightly), Water (Slightly) |
| Vapor Presure | 0Pa at 25℃ |
| Appearance | Solid |
| Color | Very Dark Red to Very Dark Brown |
| Storage Condition | Room Temperature, under inert atmosphere |
| Physical and Chemical Properties | Orange-yellow powder. Very soluble in cold water and hot water, the solubility in water is 50g/L (90 degrees C), the aqueous solution is yellow. Soluble in ethanol, orange-brown. It is yellow in concentrated sulfuric acid, and turns dark yellow after dilution, with precipitation. When staining, the color light of copper ion was slightly green, and the color light of iron ion was darkened. |
6373-74-6 - Risk and Safety
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| HS Code | 32041200 |
6373-74-6 - Reference Information
| LogP | -0.4 at 20℃ |
| (IARC) carcinogen classification | 3 (Vol. 57) 1993 |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | acid orange E-3R can be used for dyeing wool, silk, nylon, and also for dyeing textiles. Mainly used for dyeing nylon, can be used alone, can also be used as three primary colors for color matching. Levelness and migration were good. When dyeing blended fabrics, cellulose fiber, acetate fiber are not stained, can also be used for leather coloring. |
| production method | with 2, 4-dinitrochlorobenzene and 2-anilino-5-aminobenzenesulfonic acid as raw materials, both can be condensed at 50-60 °c by addition of phase transfer catalyst TEBA (or PEG400-600) under basic conditions to give the product. The product is obtained by filtration, drying and grinding.. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 19:05:13
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